Create a new directory on your system.
Add all samples in the form of WAV files to the directory.
Invoke OP-1/Z Sample Packer like so;
$ ./op1zsamplepacker-macos "<WAV files directory location>"
$ ./op1zsamplepacker-linux64 "<WAV files directory location>"
op1zsamplepacker-win64.exe "<WAV files directory location>"
Upon exection, the packer will compile the samples into a file named samplepack.aif. This file nominated <WAV files directory location>. Please note that any previous file named samplepack.aif in that directory will be overwritten. Absolute and relative paths for the <WAV files directory location> are supported.
To use the feature simply add the word "Chord" at the end ('piano Chord,0,Bbdim.wav') before the '.wav' extension.
'Drumkit PO-33.7' will launch the application in PO-33 mode and will squeeze all samples in that folder into 7 seconds.
The way these variations are generated depends on their sample attributes.
Playing back the sample you will hear a calibration tone followed by the sped up samples.
You can convert everything you see to a format you find convenient. Give it a try!